v2.4.0.8
Note 6 - Customer and Supplier Concentrations (Details) - Suppliers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2013
Jan. 31, 2013
Note 6 - Customer and Supplier Concentrations (Details) - Suppliers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable [Line Items]    
Total gross accounts receivable due from suppliers (in Dollars) $ 634 $ 1,156
Total gross accounts receivable due from suppliers 100.00% 100.00%
Balance (in Dollars) 595 1,130
Percentage 94.00% 98.00%
Power Systems Technologies, Ltd. [Member]
    
Note 6 - Customer and Supplier Concentrations (Details) - Suppliers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable [Line Items]    
Balance (in Dollars) 473 1,008
Percentage 75.00% 87.00%
Zheng Ge Electrical Company Ltd [Member]
    
Note 6 - Customer and Supplier Concentrations (Details) - Suppliers Comprising 10 Percent or More of the Company’s Gross Accounts Receivable [Line Items]    
Balance (in Dollars) $ 122 $ 122
Percentage 19.00% 11.00%